ENSURE A LEAK-FREE FIT: valve cover gaskets are the most common leak-repair component. Using materials like the Blue Stripe cork-rubber composite, Permadryplus rigid carrier construction, or molded rubber, Fel-Pro ensures its gaskets compensate for surface irregularities and resists high heat and vacuum.
Cheapest one I could find. I was surprised when it arrived because it was sooner than expected. I replaced the old one right away and the leak stopped.